package cn.edu.dgut.gy.lab2demo.demo;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.context.event.ApplicationReadyEvent;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.context.annotation.Bean;
import org.springframework.context.event.ApplicationEventMulticaster;
import org.springframework.context.event.SimpleApplicationEventMulticaster;
import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
import org.springframework.stereotype.Component;
@Component
public class MyListener1 {
    @Bean(AbstractApplicationContext.APPLICATION_EVENT_MULTICASTER_BEAN_NAME)
    ApplicationEventMulticaster customApplicationEventMulticaster(ThreadPoolTaskExecutor taskExecutor){
        SimpleApplicationEventMulticaster eventMulticaster = new SimpleApplicationEventMulticaster();
        eventMulticaster.setTaskExecutor(taskExecutor);
        return eventMulticaster;
    }
    static class NoticeEvent extends ApplicationEvent {
        private final static Logger logger = LoggerFactory.getLogger(NoticeEvent.class);
        private final String message;
        public NoticeEvent(String message){
            super(message);
            this.message=message;
            logger.info("添加事件成功！message:{}",message);
        }
        public String getMessage(){return message;}
    }
    @Component
    static class NoticeListener implements ApplicationListener<NoticeEvent>{
        private static final Logger logger=LoggerFactory.getLogger(NoticeListener.class);

        @Override
        public void onApplicationEvent(NoticeEvent noticeEvent){
            logger.info("事件监听器获取到NoticeEvent,睡眠当前线程2秒...");
            try{
                Thread.sleep(2000);
            }catch (InterruptedException e){
                e.printStackTrace();
            }
            logger.info("NoticeEvent的message属性是:{}",noticeEvent.getMessage());
        }
    }
    @Bean
    public ApplicationListener<ApplicationReadyEvent> Listener(){
        return event->{
            System.out.println("自定义事件监听器ApplicationReadyEvent");
        };
    }
}
